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(No Model.)

W. D1 SCHUYLER. CLEANSING, DISINPBCTING, AND TESTING DRAIN PIPES-INDWELLINGS AND OTHER STRUCTURES.

No. 374,008. Patented Nov. 29, 188.7.

% INVENTOR:

W BY ATTORNEYS.

N. PETERS, Plmw-Lilhngngzhcr, Washington, n. C.

UNITED STATES PATENT OFFICE.

WILLIAM D. SOHUYLEB, OF NEWV YORK, N. Y.

CLEANSING, DISINFECTING, AND TESTING DRAIN-PIPES IN DWELLINGS AND OTHERSTRUCTURES.

$PECIPICA'1ION forming part of Letters PatentNo. 374,008. dated November29, 1887.

Application filed March 31,1887. Serial No. 233,159. (No mode.)

and foul water or matter from wash-bowls,

water-closets, bath-tubs, sinks, and other like stationary receptacleson the different floors or stories of a building, and also for detectingleakage in said drain-pipe and its connections, and to afford additionalprotection against the escape of sewer-gas into the apartments of thebuilding.

The invention consists in a novel methodand means for accomplishingthese ends or any of them, substantially as hereinafter described, andpointed out in the claims.

Reference is to be had to the accompanying drawing, which represents adiagram or skeleton view in elevation of the invention as applied to awash-bowl, bath-tub, and sink upon different floors of .a building.

A A A indicate the floors of different stories or apartments, one abovethe other, of a building, and B B B certain water fixtures orreceptacles therein, and which are here represented as .consisting of awash-bowl, B, a bathtub, B, and a sink, B. These receptacles, however,may be substituted by others, and the usual orany suitablepipe-connections and faucets are or may be provided for supplying themwith hot or cold water, or both.

O is the waste or drain pipe, running up through the building anddesigned to connect below with the sewer or cess-pool, as the case maybe. 1

D D D are the valves for discharging the contents of said receptacles BB B into the weighted hand trap-valve similar to that described inLetters Patent No. 337,445, issued to me on March 9, 1886.

E and F are the discharge-connections, the latter one preferably in theform of atrap, between the receptacles, the hand dischargevalves D, andthe drain-pipe 0. Any other discharge-connections, however, with valvescontrolling the same between the receptacles and the drain-pipe may beused.

G G G are hand-valves in the drain-pipe 0, arranged below where thedischarge-connection from each receptacle communicates with thedrain-pipe. These valves, which may be of any suitable construction, aredesigned to open and close the drain-pipe between the different floorsand below them, but their normal condition is an open one when thedifi'erent receptacles are in use. The lowest one of these valves G maybe regarded as a general shutoff,- to give additional protection againstthe escape of sewer-gas into the different apartments when the buildingis not occupied, or all or any of these valves G may be used for thesame purpose. Said valves G, however, have other and importantfunctions. Thus, they may be used for detecting leakage in thedrain-pipe, not simply by closing the lower one of said valves andflooding the drain-pipe throughout its height with water, which mightexpose said pipe to rupture by the pressure thrown upon it and wouldrequire a much stouter drain-pipe to be used than otherwise isnecessary, but, by only partially flooding the drain-pipe, either fromthe receptacles in the apartments or otherwise, between any two of thevalves G, kept closed for the purpose, any particular section orportionof the drainpipe may be tested to indicate the apartment in which thereis a supposed leakage from the drain-pipe or its connections, withoutflooding the whole drain-pipe or exposing it to an excessive head orpressure of water. The most important function, however, of these valvesG is the facility which they afford for cleaning or washing out anddisinfecting the drain-pipe and its connections, either throughout thewhole' length of the drain-pipe or only certain sections of it. Thus anyone or a pair of said valves may be closed to flood the drain-pipe aboveit or between them, and disinfectants be introduced from one or more ofthe receptacles or water-fixtures into the drain-pipe by opening thesupply valve or valves D controlling the discharge from the receptacleor receptacles into the drain-pipe, and afterward suitably opening thevalve or valves G to wash out the drain-pipe; or the drain-pipe may besimply washed out in sections or throughout its whole length, ifdesired, without using disinfectants. Vhen disinfectants, however, areused to purify the drain-pipe and its connec tions, the valvulardivision of the drain-pipe into sections corresponding with thedifferent apartments will be found especially serviceable andeconomical, as only certain sections of the drain-pipe may require to bedisinfected as, for instance, when only one or more of the apartments orreceptacles therein are used and not the others.

By this invention it will be observed that the drain-pipe C is readilyconvertible into a closed vessel, either throughout its length or insections. by closing the lower end of the pipe or by dividing the pipeinto closable sections.

The separate or individual connections between the wash bowl,water-closet, or other receptacles may be closed by any suitableresisting-valve or by the weighted or automatic hand trap-valve D,hereinbefore mentioned, while the valves G, which may be hand-trap orany other kind, and of which there may be one or more, are arranged toconveniently close or cut off said drain-pipe at its outlet or in sections-that is,at different points in it s lengthand serve to convertsaid drain-pipe into a closed vessel either throughout its length or insections, in order thatsuch parts as desired may be conveniently filledwith disinfecting water or agents and be both soaked with and flushed ofall organic or other hurtful or dangerous substances, and the same thusbe cleansed for the purpose of more effectually preventing thegeneration of sewage-gas and its escape within the building.

Each receptacle and its connection with the drain-pipe and the sectionof the drain-pipe with which it connects may be separately cleansed ordisinfected by filling the receptacle with the necessary cleansing ordisinfect ing fluid, closing the valves G in the drainpipe, or certainof them, and opening the valve D of said receptacle, and after thecleansing or disinfecting fluid has remained a sufficient length of timeto accomplish the desired result the valve G below the receptacle may beopened to flush or run off the fluid, the valve D of the receptacle thenremaining open.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In drain-pipe connections for wash-bowls, water-closets, and otherlike structures, the method herein described of cleaning anddisinfecting the drain-pipe and of detecting leakage in it, whichconsists in dividing said pipe into opening and closing sections atdifferent points in its height at or near its connection with differentwater structures or receptacles on different floors or stories of abuilding, es-

' sentially as specified.

2. In drain-pipeconnections for wash-bowls, water-closets, and otherlike structures or receptacles, the combination of a series ofreceptacles arranged, respectively, in apartments one above the other, adrain-pipe common to all the receptacles, independentdischargeconnections and independent valves controlling the same betweenthe receptacles and the drainpipe, and a series of independenthand-valves in the drain-pipe below the points of connection of thereceptacles with the drain-pipe, substantially as specified.

3. In drain-pipe connections for wash-bowls, water-closets, and otherlike structures or receptacles, the combination of a series ofreceptacles arranged, respectively, in apartments one above the other, adrain-pipe common to all the receptacles, independentdischarge-connections, and a series of independent hand-valves in thedrain-pipe below the points of connection of the receptacles with thedrain-pipe, substantially as specified.

4. The combination, with the several water fixtures or receptacles in aseries of apartments one above the other, of the drain-pipe 0, common toall the receptacles, the discharge-connections E F, with theirindependent hand-valves D between said receptacles and the drain-pipe,and the independent handvalves G in the drain-pipe, essentially as shownand described, and for the purposes herein set forth.

XVILLIAM D. SCHUYLER.

W'itnesses:

EDGAR TATE, E. M. CLARK.

